Electrically heated batch oven

Wisconsin Oven's newest unit is designed for low- and medium-temperature cure of composites.

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Wisconsin Oven Corp. (East Troy, Wis.) has developed a new electrically heated batch oven for low- to medium-temperature resin curing of composite materials. The oven has work chamber dimensions of 7 ft wide by 10 ft long by 7 ft high (2.1m by 3m by 2.1m). Maximum operating temperature is 500ºF/260°C. The oven is constructed with 4-inch/102-mm-thick tongue-and-groove panel assemblies, 12 gauge aluminized floors, and 20 gauge aluminized steel interiors and ductwork. The heating system features incoloy-sheathed heating elements, for a total of 96kW, with SCR power control. The recirculation system consists of an 8,600 cfm, 10-hp blower and uses combination airflow to maximize heating rates and temperature uniformity. The exhaust system features motorized dampers on the fresh air inlet and exhaust outlet for enhanced heating and cooling capabilities. Twelve interior vacuum stubs per side, for a total of 24, are provided, as are 24 position type J thermocouple jack panels per side. The oven offers nine-point temperature uniformity of ±10°F/5.6°C at 300°F/149°C. Temperature is controlled by a Watlow F4 programmable temperature controller with autotune.